Grain-drill.



PATLNTBD AUG. 27, 1-907. A. Ll JOHNSON.

GRAIN DRILL.

me NaRRfs Persns ca., wAsmlycro/v, n. c,

APPLIOATIGR' FILED IAB. 27. 1907.

UNITED STATES PATENT OFFICE.'

ANDItEW L. JOHNSON, OF HAMILTON, ONTARIO, CANADA, ASSIGNOR TO INTERNATIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

GRAIN -DRILL.

N o. 864,469. j Specification of Letters Patent. Patented Aug. 27, 1907.

i Application liled March 27,1907. Serial No. 364,899.

To all 'whom it may cof/teem: opposing cam surfaces upon the ring and disk support Be it known that I, ANDREW L. JOHNSON, a citizen operate to adjust the arm laterally bodily relative to oi the United States, residing at Hamilton, in the the support, and the tooth upon the ring, engaging with county of Wentworth, Province of Ontario, and Doi the toothed surface upon the arm, together with the 5 minion of Canada, have invented certain new and usesecuring means, locks the operative parts of the adjustful Improvements in Grain-Drills, of which the ollowing` mechanism in position. In this manner the grain ing is a specification. l boot may be adjusted bodily laterally relative to the My invention relates to grain drills, and particularly disk support in a manner to cause the scraper device to that type having rotatable disk furrow openers in to press with more or less force against the surface of l combination with seed tubes and scraper devices sutthe disk.

l 1 Figure l represents a side elevation of a disk furrow ably mounted; the object being to provide means What I claim as my invention, and desire to secure whereby the parts may be laterally and relatively by Letters Patent, is:

adjusted. I attain these Objects by the mechanism j 1. A disk support for grain drills comprising, in comuustmted in the accompanying drawing] in Which` bination, a disk, a support upon which said disk is rotatably mounted, a boot, means for securing said boot to said support. comprising a ring arranged between said Opener: man] bool; mddmgbar embodymg my uwen" members, said ring and one of said members having oppos tion. Fig. 2 iS a Cross section of Fig. 1 on line A-B. ing` cam surfaces adapted to produce relative lateral ad Fig 3 is im enlarged demi] showjng the manner of justmeiit of said members when said ring is rotated.

2. "4 mountlng the disk upon its support. Fig. 4 is a cross dlsk lppolt fol glam alms, comlmulg 1 com bination, a disk, a support upon which said disk is rota- Sectlon of Flg- 3 on hn@ C D Flg' 5 1s a Secuond tably mounted, a boot, means for securing` said boot to detail of the adjusting mechanism; and Fig. G is a desaid support, said means comprising; a ringY arranged betaclied sectional detail of a part of the adjusting inechtween Said members, Said Pine' and one 0f Said members mSm. havingl opposing cam surfaces adapted to produce relative lateral adjustment of said members when said ring is Sunday reference numerals deslgnate hke parts rotated, said ring and the other member havingl toothed throughout the Several Views. surfaces adapted` to engage with each other.

l is a disk furrow opener rotatably mounted upon a 3. A disk SUDDOIt f01' grain drills COIHDlSIia in C0111` disk Suppoyt 27 secured to the 1.6m. end of a (Img bal. 3 biiiation, a disk, a support upon which said disk 1s rota- I fb 1t 4 tably mounted, a boot, means tor securing;` said boot to )y means O 0 s said support, said means comprising,- a ring arranged be- 5 represents a boot havllig a. OIWZLldly Mld dOWn tween said members, said ring and one of said members 30 Wardly projecting arm 6 near its upper end and a having' opposing' cam surfaces adapted to produce relative Semper 7 Secured to the to@ thereof 2Jnd extending fop lateral adjustment of said members when said ring is rotated, said ring and the other member having' toothed Ward and upward therefrom towardhe mus of the disk surfaces adapted to engage with each other, and a radially md adapted to Contact therewlth nl l manner t0 free projecting ear upon said ring whereby it may be rotated. the surface thereof of any adhering material. 4., A disk support for grain drills comprising, in com- 3 5 The lower end of the mim 6 is provided with a bearing biiiation, a disk, a support upon which said disk is rota- 40 cam 13. The boss l2 is adapted to receive the ring 9 m v tably mounted, a boot, an arm integral with said boot Smmce Compnsmg an Mmmm Channel 8 adapted to and extending forwardlyand downwardly from the upper VGCV a Ting 9: having ai face @am lo and L projecting end thereof, a scraper secured to the toe of said boot and ear portion ll. The disk Support 2 iS provided With a projecting forward and upward therefrom, a ring rotatably projecting boss l2, md Surrounding the boss is L face mounted upon said arm, its axis oi rotation beingl substantially parallel with the axis oi' said disk, an annular cani forming,` part of said support, said ring having a cam m a manner to Cause the two face Cams to Contact Wlth surface adapted to contact with the cani on said support each other, and the ear portion Il is provided With a in a manner to produce a relative lateral adjustment ot laterally projecting tooth 111 adapted to engage with an Said 11'111 and Support Wlwli Said Pins' iS rotated annular toothed surface llforming part of the arm 6 out- ANDREW L JOHNSON, side of its cam surface. A bolt l5, axially arranged, se- Witnesses eures the parts in position. The ring 9 may bel rotated JAS. M simmer),

by means of theear portion 11, and as it is rotated the T- N. DAGGETT. 

